co·lum·bite 
(kə-lŭmbīt′)
(kə-lŭmbīt′)n.
A black, red-brown, or colorless mineral, essentially (Fe, Mn)(Nb, Ta)2O6, the principal ore of niobium.
[COLUMB(IUM) + -ITE1.]
- helicon
- Helicon
- heliconia
- helicopter
- helicopter parent
- helicultural
- heliculturalist
- heliculture
- helio-
- heliocentric
- heliocentrical
- heliocentricity
- Heliogabalus
- heliograph
- heliographer
- heliographic
- heliography
- heliolatry
- heliometer
- heliometric
- heliometrical
- heliometrically
- heliometry
- heliopause
- Heliopolis